Bbick-htachine



UNITED STATES PATENT OFFICE.

P. S. DEVLAN, OF READING, PENNSYLVANIA.

BRICK-MACHINE.

Specification of Letters Patent No. 14,713, dated April 22, 1856.

To all whom t may concern:

Be it known that I, PATRICK S. DEVLAN, of Reading, in the county of Berks and State of Pennsylvania, have' invented certain new and useful Improvements in Brick-Machines; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a part thereof, in which- Y Figure 1 represents a perspective view of the machine. Fig. 2 represents a vertical and a horizontal section taken through the red lines in Fig. l and Fig. 3 represents an elevation from one of the sides.

Similar letters in the several gures denote like parts.

The nature of my invention relates to the combination of an intermittently acting conveying and delivery apparatus, with a reciprocating plunger, and stationary mold, so that the plunger shall pass through the clay conveying, and brick delivering apparatus into the mold below it to form the brick, and the arrangement of devices, for operating the several parts of the machine so as to work in unison with each other, and which simplify and cheapen the cost of the machine, as will be described.

A, represents the base of the press, from which rises an inverted U shaped frame B, which together with the base or bed plate A, supports the entire machine.

In a hub C, on one side of the vertical frame, is secured a short shaft, upon which a iiy or band wheel D is placed through which motion is communicated to the machine from any first mover. Connected with the wheel D, so as to turn with it is a spur wheel E, which takes into and operates a gear wheel F, also supported on the frame, by a shaft passing through the frame, said shaft having on its inner end a wheel G, to which is connected by a wrist pin, one end of a connecting rod H, the other end of which connecting rod is similarly attached by a wrist pin to the top of the plunger I. i

The plunger I, is supported in the top or bow of the frame, and in a cross piece J below it, and has a vertically reciprocating movement through its bearings, by the means just above described. A second cross piece K, below that J, has in it the mold L, in which the brick (as shown by red sectional lines in Fig. 2) is formed. On this tatin(r cross piece K, is also formed a kind of table M (Fig. 2) over which the intermittently rog, clay carrying, and brick delivering apparatus N, which is of a circular form, (though it may be of different form and accomplish the same thing) works. This wheel N, is yfurnished with any suitable num- ,ber of clay depositories O, into whichthe clay is thrown, the table M, underneath it, forming bottoms as it were to said depositories, and lit r `is A rotated intermittently, through a shaft P, on the upper end of which it is placed, as will be described.

On one side of the plunger I, is a stud or pin a, which strikes-alternately on the arms b, Z2', attached to a shaft c, by which means said shaft receives a rocking motion. The shaft c, passes through the frame B, and has upon its outer end, an arm cl, provided with a weight Q, for causing said arm al to fall with suiiicient force to operate the pawls connected to, or operated by it, as follows: R, is a connecting bar, one end of which is attached to the arm al, and the other end to a bell crank lever S, which works loosely on the shaft T. On the said shaft T, is permanently fixed a ratchet wheel U, into which a dog or pawl V, pivo-ted to one of the arms of the bell crank S, takes, so that as the arm d, rises by the rocking of the shaft c, said pawl V, will slip over the ratch U, and when it falls, will by means of said ratch and pawl, give a partial rotation to the shaft T. The shaft T, has upon it a bevel gear wheel W, which mashes with a similar bevel wheel X on the shaft P, and thus imparts to said shaft P, and the wheel N upon it, a similar partial rotation, bringing one of its clay receptacles o, immediately underneath the plunger I, and over the mold L. The plunger I, in its descent, passes through the clay depositories o, carrying the clay before it into the stationary mold L, below, and there forms the brick. The perimeter of the wheel N, is provided with ratchet teeth e, into which a ratchet f, operated by the arm R, takes so as to release said wheel N, and then catch and hold it in proper position for the plunger. Y is an adjustable support for atching the arm d, to prevent its falling too On the rear of the plunger I, is a stud or pin i, and to this stud or pin, is connected by a slot m, a bar Z, which carries on its lower end a follower fn., for raising up out of the mold into one of the receptacles 0, the brick after itis pressed, :and thus the r,51e-Ine receptacle which brings up the clay to the mold,

becomes the depository for the pressed brick, f and carries it around or forward far enough to drop it onto an endless belt, or other conveyer, for carrying it away. When the= plunger descends the pin z', passes throughl the slot m, until near the .end thereof without moving the bar Z, or the follower n, on it, but When `the pin arrives at tf1-1e .of the slot, 4it carries down the bar Z, .sind kthe follower n, until said followerrests .upon cross piece J', of the frame, which :takes the pressure off the follower. 'The brick :being formed, the plunger rises, and when the pin reaches the :top `of the slot, `the follower rises up also, carrying the pressed brick up into the receptacle 0, immediately .above it; at

this point of the operation `the 'Wheel N, is again brought around .a portion of .a revolu- ,arrangement of `devices :substantially as described.

PATRICK S. DEVLAN.. Witnesses:

M. RUPPEL, A. B. .Smousnrom 

